US6972778B2ExpiredUtilityPatentIndex 41
Color re-mapping for color sequential displays
Assignee: KONINKL PHILIPS ELECTRONICS NVPriority: Jun 27, 2002Filed: Jun 27, 2002Granted: Dec 6, 2005
Est. expiryJun 27, 2022(expired)· nominal 20-yr term from priority
G09G 3/3607G09G 3/2003G09G 2320/0242G09G 2310/0235
41
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Claims
Abstract
A color re-mapping method for a sequential display system corrects for slow temporal display response.
Claims
exact text as granted — not AI-modified1. A method of color re-mapping for color sequential displays, comprising:
an input step of inputting triplet values representing respective intensities of first, second, and third color components of an image to be displayed;
a display step of producing the image on a display by temporally sequentially displaying the image in the first color based on the first color intensity, then the second color based on the second color intensity, and then the third color based on the third color intensity; and
a color correction step for correcting resulting display intensities to conform more accurately to the respective image intensities by correcting for slow temporal display response, wherein the color correction step includes:
determining a plurality of desired corrected triplet values corresponding to respective input triplet values;
assigning each of the plurality of desired corrected triplet values to its corresponding respective input triplet value in an a priori lookup table; and
for every input triplet value received, looking up the corresponding corrected triplet value in the lookup table, and using the corresponding corrected triplet value to drive the display in place of the input triplet value.
2. The color re-mapping method of claim 1 , wherein the lookup table is a full lookup table providing correction values for every possible color triplet value.
3. The color re-mapping method of claim 1 , wherein the lookup table is a course sampling table, so that a corrected triplet value in the lookup table corresponds to a plurality of different possible input triplet values.
4. The color re-mapping method of claim 1 , wherein the lookup table is a course sampling table, and further interpolating corrected triplet values to obtain a calculated corrected triplet value for an input triplet value.Cited by (0)
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